CN108321768A - A kind of ozone discharge tube electrode puncture protection device of Dielectric Barrier Discharge Type Ozone Generator and apply its ozone generator - Google Patents
A kind of ozone discharge tube electrode puncture protection device of Dielectric Barrier Discharge Type Ozone Generator and apply its ozone generator Download PDFInfo
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- CN108321768A CN108321768A CN201710026951.XA CN201710026951A CN108321768A CN 108321768 A CN108321768 A CN 108321768A CN 201710026951 A CN201710026951 A CN 201710026951A CN 108321768 A CN108321768 A CN 108321768A
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- frequency converter
- voltage
- access interface
- discharge tube
- booster
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/10—Preparation of ozone
- C01B13/11—Preparation of ozone by electric discharge
- C01B13/115—Preparation of ozone by electric discharge characterised by the electrical circuits producing the electrical discharge
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2201/00—Preparation of ozone by electrical discharge
- C01B2201/10—Dischargers used for production of ozone
- C01B2201/14—Concentric/tubular dischargers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The present invention provides a kind of ozone discharge tube electrode puncture protection device of Dielectric Barrier Discharge Type Ozone Generator and applies its Dielectric Barrier Discharge Type Ozone Generator, and the ozone discharge tube electrode puncture protection device includes frequency converter output voltage transmission circuit, marked voltage of discharge tube transmission circuit, digital signal processor circuit, protection signal dry contact output circuit and auxiliary power circuit；The low-voltage analog signal output end of the frequency converter output voltage transmission circuit and the first analog-to-digital conversion mouth of digital signal processor circuit connect, and the low-voltage analog signal output end of the marked voltage of discharge tube transmission circuit and the second analog-to-digital conversion mouth of digital signal processor circuit connect；The driving pin of digital signal processor circuit is connect with the driving pin of protection signal dry contact output circuit；The protection signal dry contact picks out port opened point and protection signal dry contact picks out port common point output protection signal.
Description
Technical field
The present invention relates to a kind of ozone discharge tube puncture protection device, especially a kind of dielectric barrier discharge type ozone occurs
The ozone discharge tube electrode puncture protection device of device and its ozone generator is applied, belongs to ozone generator field.
Background technology
Dielectric Barrier Discharge Type Ozone Generator is the main the way of production of industrial big dosage ozone, generally includes medium resistance
It includes frequency converter, booster, control centre and ozone generator cavity and its discharge tube to keep off discharge-type ozone generator.It is basic
Principle is, as shown in Figure 1, being inserted into glass between two coaxial cylinders electrodes or between two parallel plates high-field electrode 15 and low-field electrode 17
The media such as glass, ceramics 16, there are minim gap between two electrodes and medium, by oxygen or rich in the air of oxygen in gap, when
When applying the alternating voltage of the thousands of volts of few kilohertz between two electrodes, oxygen molecule is ionized out oxygen atom and then forms ozone.Glass,
Effect of the media such as ceramics played in dielectric barrier discharge is that limitation strength of discharge enters conditions at the arc.
As shown in Fig. 2, usually, Dielectric Barrier Discharge Type Ozone Generator includes frequency converter 7, booster 8, control centre
9 and ozone generator cavity 10 and its discharge tube 101；The voltage input end of the frequency converter 7 is connect with power grid, frequency converter 7
Output voltage picks out port 1, output voltage picks out primary side access interface of the port 2 72 respectively with transformer in booster 8
1 and booster 8 in the primary side access interface 2 82 of transformer connect, the high-field electrode of every discharge tube seals in a fusing
Device 14 is connected to 8 interior resonance high-voltage connecting exit port 83 of booster, and the low-field electrode of every discharge tube reconnects after being connected in parallel
Port 84 is picked out to the low pressure in booster 8, control centre has in frequency converter enabling signal dry contact opened point 93 and control
Heart frequency converter enabling signal dry contact common point 94, control centre's frequency converter enabling signal dry contact opened point 93 and frequency conversion
The first access interface of device enabling signal 73 connects, and control centre's frequency converter enabling signal dry contact common point 94 starts with frequency converter
The second access interface of signal 74 connects.
The alternating voltage for being applied to the two interelectrode thousands of volts of few kilohertz is to convert power-frequency voltage to number by frequency converter
The alternating voltage of kHz, then boosted device are converted into the alternating voltage of the thousands of volts of few kilohertz.Booster is generally by transformer
Secondary side series resonance inductor is constituted.The power input of frequency converter is connect with AC network, the power output end and liter of frequency converter
The voltage input end of depressor connects, and the voltage output end of booster is connected to the high-low pressure electrode of more parallel discharge pipes.
In Dielectric Barrier Discharge Type Ozone Generator, cause to be situated between when medium existing defects itself, equipment conveying vibrate on the way
When situations such as matter crackle or air source poor quality cause dirt to block air gap occurs, medium may rupture and lose limitation electric discharge
The ability of intensity, dielectric barrier discharge moment, which develops, becomes electric arc.Under normal dielectric barrier discharge state, between high-low pressure electrode
It will produce thousands of volt ac high-voltages；And dielectric rupture enters under conditions at the arc, between high-low pressure electrode normally only residues ten to hundreds of
Voltage is lied prostrate, the high current of a pilot arc is generated in dielectric rupture point.If the safeguard measure without breaking arc, in a few seconds
The both sides discharge electrode of disruption medium will be breakdown, causes the leak of water-cooling type generator cavity or non-water-cooling type generator chamber
The catching fire of body.
The catching fire of non-water-cooling type generator cavity belongs to safety accident, it is necessary to avoid.And water-cooling type generator cavity
After leak, entire discharge air-gap will be seriously polluted, brings the deuce to pay to follow-up maintenance, therefore should also avoid as possible.In addition to master
It is dynamic to reduce except the above-mentioned probability of happening that lead to dielectric rupture factor, it is necessary to can to the dielectric rupture that can not thoroughly eliminate
Energy property carries out quick protection act, prevents electric discharge pipe electrode breakdown.
In the prior art, electric discharge pipe electrode breakdown protection measure includes fuse protected mode, marked voltage of discharge tube knot
Close frequency converter start and stop state protected mode etc..
Wherein fuse protected mode occurs earliest, and is widely used, and its principle is as shown in Figure 2, dielectric barrier discharge
Type ozone generator includes frequency converter 7, booster 8, control centre 9 and ozone generator cavity 10 and its discharge tube 101；It is described
Control centre has frequency converter enabling signal dry contact opened point 93 and control centre's frequency converter enabling signal dry contact common point
94, control centre's frequency converter enabling signal dry contact opened point 93 connects with the first access interface of frequency converter enabling signal 73
It connects, control centre's frequency converter enabling signal dry contact common point 94 is connect with the second access interface of frequency converter enabling signal 74；Institute
The voltage input end for stating frequency converter 7 is connect with power grid, and the output voltage of frequency converter 7 picks out port 1, output voltage picks out end
Mouthfuls 2 72 primary side access interface with transformer in the primary side access interface 1 of transformer in booster 8 and booster 8 respectively
2 82 connections, the high-field electrode of every discharge tube seal in a fuse 14 and are connected to 8 interior resonance high-voltage connecting outlet of booster
Mouthfuls 83, the low pressure that the low-field electrode of every discharge tube is connected to after being connected in parallel in booster 8 picks out port 84.
In discharge tube dielectric rupture, the electricity of the correspondence fuse 14 of the discharge tube where the discharge tube medium is flowed through
Stream increases, and fuse 14 fuses and then cuts off the high-voltage electricity for supplying the root discharge tube, reaches electrode breakdown protection function.Its advantage
It is that principle is simple, independent protective can be carried out to every electric discharge pipe electrode；Disadvantage is that a large amount of fuse installations are complicated, needs to select
With the expensive fuse of the special type of resistance to ozone and the thousands of volts of rated voltage, of high cost, fuse characteristic or current parameters type selecting are improper
When be susceptible to malfunction or be failure to actuate.
In addition, the ozone discharge tube electrode using marked voltage of discharge tube combination frequency converter start and stop state protected mode punctures
Protective device is also by more multi-vendor use, and as shown in Figure 3-4, existing ozone discharge tube electrode puncture protection device 6 includes to put
Fulgurite discharge voltage transmission circuit 2 and auxiliary power circuit 5, the marked voltage of discharge tube transmission circuit 2 and accessory power supply electricity
Road 5 is electrically connected, and there is the marked voltage of discharge tube transmission circuit 2 marked voltage of discharge tube access interface 1, discharge tube to put
Piezoelectric voltage access interface 2 22 and the second low-voltage analog signal output end 23；
As shown in figure 4, in Dielectric Barrier Discharge Type Ozone Generator, the high-field electrode of every discharge tube connects again after being connected in parallel
It is connected to 8 interior resonance high-voltage connecting exit port 83 of booster, the low-field electrode of every discharge tube is connected to booster 8 after being connected in parallel
Interior low pressure picks out port 84, and the voltage input end of the frequency converter 7 is connect with power grid, and the output voltage of frequency converter 7 picks out end
Mouthfuls 1, output voltage pick out port 2 72 respectively in the primary side access interface 1 and booster 8 of transformer in booster 8
The primary side access interface 2 82 of transformer connects, and the output voltage of frequency converter 7 picks out port 1 and transformer in booster 8
Between primary side access interface 1, output voltage pick out the primary side access interface 2 82 of transformer in port 2 72 and booster 8
Between be separately connected there are one fuse；There is frequency converter enabling signal dry contact opened point 93 and control centre to become for control centre
Frequency device enabling signal dry contact common point 94, control centre's frequency converter enabling signal dry contact opened point 93 are opened with frequency converter
The first access interface of dynamic signal 73 connects, control centre's frequency converter enabling signal dry contact common point 94 and frequency converter enabling signal
Second access interface 74 connects；In ozone discharge tube electrode puncture protection device 6, the marked voltage of discharge tube transmission circuit 2
Marked voltage of discharge tube access interface 1 and marked voltage of discharge tube access interface 2 22 it is high with booster 8 interior resonance respectively
Low-voltage picks out 84 parallel connection of port, the low-voltage simulation of marked voltage of discharge tube transmission circuit 2 in crimping exit port 83 and booster
Signal output end 23 is connect with control centre low-voltage analog signal input terminal 95.
Its operation principle is：By being connected in parallel on one in one section of 2 detecting real-time of marked voltage of discharge tube transmission circuit
The high-low pressure inter-electrode voltage situation of all discharge tubes risen, and the discharge voltage signal after conversion is uploaded into the controls such as PLC
Center, control centre judge according to the signal in conjunction with frequency converter start and stop state, and judgment mechanism is：Frequency converter starting state
The discharge voltage of lower discharge tube is very low, then is judged as dielectric rupture, closes frequency converter immediately and exports and then electric arc is blocked to reach electricity
Pole breakdown protection function；Under frequency converter halted state, protection act is not generated.It is advantageous that the protective device is in ozone
Except generator cavity, and more parallel discharge pipes share set of device, and installation is simple；But it has a drawback in that：（1）Not
It constitutes completely independent protective device, need the cooperation for relying on control centre that can just provide protection signal, control centre is negative
The task weight of load,（2）It will produce accidentally protection signal in a case where.For example, control centre gives startup letter to frequency converter
Number, but if frequency converter output voltage is abnormal, will be unable to make to generate high pressure between discharge tube high-low pressure electrode；For another example, frequency converter
Start and normally export, but frequency converter is output to the fuse blows between booster input, can not also make discharge tube high-low pressure
High pressure is generated between electrode.In these cases, control centre will produce error protection action, and the investigation that can increase failure is difficult
Degree.
Therefore, it is required to the completely independent ozone discharge tube electricity to Dielectric Barrier Discharge Type Ozone Generator in a hurry
The ozone discharge tube for the Dielectric Barrier Discharge Type Ozone Generator that pole carries out anti-breakdown protection and is not likely to produce error protection action is electric
Pole puncture protection device and its ozone generator of application are actually needed to meet.
Invention content
The purpose of the present invention one is to provide a kind of ozone discharge tube electrode breakdown of Dielectric Barrier Discharge Type Ozone Generator
Protective device can protect more parallel discharge pipes, keep the electrode of the discharge tube in dielectric rupture not breakdown simultaneously, installation letter
Single, protective device itself can provide protection signal to Dielectric Barrier Discharge Type Ozone Generator completely independently.
Realizing the technical solution of the object of the invention one is：A kind of ozone discharge tube of Dielectric Barrier Discharge Type Ozone Generator
Electrode puncture protection device, including marked voltage of discharge tube transmission circuit and auxiliary power circuit, the marked voltage of discharge tube
Transmission circuit is electrically connected with auxiliary power circuit, it is characterised in that：Also include frequency converter output voltage transmission circuit, digital signal
Processor circuit and protection signal dry contact output circuit, the frequency converter output voltage transmission circuit, digital signal processor
Circuit and protection signal dry contact output circuit are electrically connected with auxiliary power circuit；The frequency converter output voltage transmission circuit tool
There are frequency converter output voltage access interface one, frequency converter output voltage access interface two and the first low-voltage analog signal output end；
The marked voltage of discharge tube transmission circuit has marked voltage of discharge tube access interface one, marked voltage of discharge tube access interface
Two and the second low-voltage analog signal output end；The digital signal processor circuit has the first analog-to-digital conversion mouth, the second modulus
Convert mouth and the first driving pin；It is normally opened that there is the protection signal dry contact output circuit protection signal dry contact to pick out port
Point, protection signal dry contact pick out port common point and the second driving pin；The first low-voltage analog signal output end and number
First analog-to-digital conversion mouth of word signal processor circuit connects；The second low-voltage analog signal output end and Digital Signal Processing
Second analog-to-digital conversion mouth of device circuit connects；The the first driving pin and protection signal dry contact of digital signal processor circuit are defeated
Go out the second driving pin connection of circuit；The protection signal dry contact picks out port opened point and protection signal dry contact picks out
Port common point output protection signal.
For superior technique effect, the technical characterstic of the object of the invention one can also be specially following technical characteristic：
（1）The Dielectric Barrier Discharge Type Ozone Generator includes frequency converter, booster, control centre and ozone generator cavity
And its discharge tube, the voltage input end of frequency converter are connect with power grid, the output voltage of frequency converter pick out port one, frequency converter it is defeated
Go out voltage and pick out primary side of the port two respectively with transformer in the primary side access interface one and booster of transformer in booster to connect
Inbound port two connects, and low-voltage picks out port and ozone discharge tube in booster interior resonance high-voltage connecting exit port and booster
High and low pressure electrode is in parallel；Frequency converter output voltage access interface one, the frequency converter of the frequency converter output voltage transmission circuit are defeated
The frequency converter output voltage access interface two for going out voltage transmission circuit is parallel-connected to Dielectric Barrier Discharge Type Ozone Generator
Transformer primary side access interface two in transformer primary side access interface one and booster in booster；The marked voltage of discharge tube
Access interface one, marked voltage of discharge tube access interface two are parallel-connected to the booster of Dielectric Barrier Discharge Type Ozone Generator
Low-voltage picks out port in interior resonance high-voltage connecting exit port and booster；
（2）Further, the output voltage of the frequency converter picks out the primary side access interface of port one and transformer in booster
There are one fuses, the output voltage of frequency converter to pick out the primary side incoming end of transformer in port two and booster for connection between one
There are one fuses for connection between mouth two；
（3）The protection signal dry contact picks out port opened point and protection signal dry contact pick out port common point respectively with control
Protection signal the first access interface in center processed, the connection of the second access interface of control centre's protection signal, control centre's frequency converter open
Dynamic signal dry contact opened point is connect with the first access interface of frequency converter enabling signal, control centre's frequency converter enabling signal stem grafting
Point common point is connect with the second access interface of frequency converter enabling signal；
（4）The protection signal dry contact picks out port opened point and frequency converter enabling signal dry contact common point company of control centre
It connects, protection signal dry contact picks out port common point and connect with the second access interface of frequency converter enabling signal, control centre's frequency conversion
Device enabling signal dry contact opened point is connect with the first access interface of frequency converter enabling signal.When protective device provides protection signal
When, i.e., protection signal dry contact pick out port opened point and protection signal dry contact pick out port common point it is separated when, become
Frequency device stops at once, realizes protection act.
Using the ozone discharge tube electrode breakdown protection of the Dielectric Barrier Discharge Type Ozone Generator of technical solution of the present invention
Device has the following advantages that：
1. protective device itself can provide protection signal completely independently, pass through the dry of protection signal dry contact output circuit
Contact, which picks out port, directly to convey stop signal to frequency converter start end, and rapid reaction, precise control prevent electric discharge pipe electrode
It is breakdown, it is efficient；
2. protective device itself can provide protection signal completely independently, pass through the dry of protection signal dry contact output circuit
Contact picks out port and conveys frequency converter protection signal to control centre, and control centre sends out the output that frequency converter is closed in instruction, moves
Make simple and direct, can realize fast reaction, effectively improve protective efficacy, improve the safety of ozone generator；
3. when frequency converter failure or inverter output terminal fuse blows, protection act is not will produce, reduces control
The erroneous judgement at center is accidentally shown, reduces the malfunction elimination difficulty of system；
4. the protective device eliminates the reliance on the operation of control centre and cooperation provides protection signal；It can mitigate control centre
Burden, improve the efficiency of control centre.
The purpose of the present invention two is to provide using the ozone discharge tube electrode breakdown protection dress described in the object of the invention one
The ozone generator set.
Realizing first technical solution of the object of the invention two is：A kind of application ozone discharge tube electrode puncture protection device
Ozone generator, it is characterised in that：Including Dielectric Barrier Discharge Type Ozone Generator and ozone as described in claim 1 electric discharge
Pipe electrode puncture protection device, the Dielectric Barrier Discharge Type Ozone Generator includes frequency converter, booster, control centre, smelly
The voltage input end of Oxygen Generator cavity and discharge tube, frequency converter is connect with power grid, the output voltage of frequency converter pick out port one,
Output voltage picks out primary side of the port two respectively with transformer in the primary side access interface one and booster of transformer in booster
Access interface two connects, in booster interior resonance high-voltage connecting exit port and booster low-voltage pick out port and discharge tube height,
Low-field electrode is in parallel；The frequency converter output voltage access interface one of the frequency converter output voltage transmission circuit, frequency converter output
The primary side incoming end with transformer in the primary side access interface one and booster of booster transformer respectively of voltage access interface two
Mouth two connects；Marked voltage of discharge tube access interface one, the marked voltage of discharge tube of the marked voltage of discharge tube transmission circuit
Access interface two is parallel-connected to low-voltage in booster interior resonance high-voltage connecting exit port and booster and picks out port；The protection
Signal dry contact, which picks out the normally closed point in port and picks out port common point with control centre frequency converter enabling signal dry contact, to be connect, and is protected
Signal dry contact picks out port common point and the second access interface of frequency converter enabling signal of ozone generator connects；Control centre
Frequency converter enabling signal dry contact opened point is connect with the first access interface of frequency converter enabling signal.
Further, the output voltage of the frequency converter picks out the primary side access interface of port one and transformer in booster
There are one fuses, the output voltage of frequency converter to pick out the primary side incoming end of transformer in port two and booster for connection between one
There are one fuses for connection between mouth two.
Realizing second technical solution of the object of the invention two is：A kind of application ozone discharge tube electrode puncture protection device
Ozone generator, it is characterised in that：Including Dielectric Barrier Discharge Type Ozone Generator and ozone as described in claim 1 electric discharge
Pipe electrode puncture protection device, the Dielectric Barrier Discharge Type Ozone Generator include frequency converter, booster control centre, ozone
The voltage input end of generator cavity and discharge tube, frequency converter is connect with power grid, and the output voltage of frequency converter picks out port one, defeated
Go out voltage and pick out primary side of the port two respectively with transformer in the primary side access interface one and booster of transformer in booster to connect
Inbound port two connects, and low-voltage picks out the high and low of port and discharge tube in booster interior resonance high-voltage connecting exit port and booster
Piezoelectricity is extremely in parallel；Frequency converter output voltage access interface one, the frequency converter output electricity of the frequency converter output voltage transmission circuit
Crimp the primary side incoming end with transformer in the primary side access interface one and booster of transformer in booster respectively of inbound port two
Mouth two connects；Marked voltage of discharge tube access interface one, the marked voltage of discharge tube of the marked voltage of discharge tube transmission circuit
Access interface two is parallel-connected to low-voltage in booster interior resonance high-voltage connecting exit port and booster and picks out port；The protection
Signal dry contact picks out the normally closed point in port and is connect with control centre the first access interface of protection signal；Protection signal dry contact picks out
Port common point is connect with control centre the second access interface of protection signal；Control centre's frequency converter enabling signal dry contact is normally opened
Point is connect with the first access interface of frequency converter enabling signal；Control centre's frequency converter enabling signal dry contact and ozone generator
The second access interface of frequency converter enabling signal connects.
Further, the output voltage of the frequency converter picks out the primary side access interface of port one and transformer in booster
There are one fuses, the output voltage of frequency converter to pick out the primary side incoming end of transformer in port two and booster for connection between one
There are one fuses for connection between mouth two.
Description of the drawings
Fig. 1 is Dielectric Barrier Discharge Type Ozone Generator discharge tube structure schematic diagram；
Fig. 2 is the ozone generator schematic diagram using fuse protected mode；
Fig. 3 is existing ozone discharge tube electrode puncture protection device；
Fig. 4 is the ozone generator schematic diagram using the ozone discharge tube electrode puncture protection device of Fig. 3；
Fig. 5 is the ozone discharge tube electrode puncture protection device of the Dielectric Barrier Discharge Type Ozone Generator of the object of the invention one
The electrical block diagram of one embodiment；
Fig. 6 be the Dielectric Barrier Discharge Type Ozone Generator of the object of the invention one ozone discharge tube electrode puncture protection device with
First embodiment schematic diagram of Dielectric Barrier Discharge Type Ozone Generator connection；
Fig. 7 is the ozone discharge tube electrode puncture protection device of the Dielectric Barrier Discharge Type Ozone Generator of the object of the invention one
Second embodiment schematic diagram being connect with Dielectric Barrier Discharge Type Ozone Generator.
In Fig. 1-7,1 is frequency converter output voltage transmission circuit, and 11 frequency converter output voltage access interface one, 12 be frequency conversion
Device output voltage access interface two, 13 be the first low-voltage analog signal output end, 2 be marked voltage of discharge tube transmission circuit, 21
It is marked voltage of discharge tube access interface two for marked voltage of discharge tube access interface one, 22,23 be the second low-voltage analog signal
Output end, 3 be digital signal processor circuit, and 31,32 be respectively the first analog-to-digital conversion mouth of digital signal processor circuit, the
Two analog-to-digital conversion mouths, 33 be the first driving pin, and 4 be protection signal dry contact output circuit, and 41 be that protection signal dry contact connects
Exit port opened point, 42 protection signal dry contacts pick out port common point, and 43 be the second driving pin, and 5 be auxiliary power circuit,
51 and 52 be externally fed access interface, and 6 be the ozone discharge tube electrode of the Dielectric Barrier Discharge Type Ozone Generator of the present invention
Puncture protection device, 7 be frequency converter, and 71 pick out port one for frequency converter output voltage, and 72 pick out end for frequency converter output voltage
Mouth two, 73 be the first access interface of frequency converter enabling signal, and 74 be the second access interface of frequency converter enabling signal, and 8 be booster,
81 be transformer primary side access interface one in booster, and 82 be transformer primary side access interface two in booster, and 83 be booster
Interior resonance high-voltage connecting exit port, 84 pick out port for low-voltage in booster, 9 centers in order to control, 91 center protection letters in order to control
Number the first access interface, 92 the second access interface of center protection signal in order to control, 93 in order to control center frequency converter enabling signal it is dry
The center frequency converter enabling signal dry contact common point in order to control of contact opened point, 94,95 in order to control center low-voltage analog signal it is defeated
Enter end, 10 be ozone generator cavity, and 101 be ozone discharge tube, and 100 be Dielectric Barrier Discharge Type Ozone Generator, and 14 be molten
Disconnected device, 15 be high-field electrode, and 16 be medium, and 17 be low-field electrode, and 18,19 be fuse.
Specific implementation mode
Embodiment one：
Below in conjunction with attached drawing 5 to the ozone discharge tube electrode of the Dielectric Barrier Discharge Type Ozone Generator described in the object of the invention one
One embodiment of puncture protection device is described in detail.
As shown in figure 5, a kind of ozone discharge tube electrode puncture protection device 6 of Dielectric Barrier Discharge Type Ozone Generator,
Including frequency converter output voltage transmission circuit 1, marked voltage of discharge tube transmission circuit 2, digital signal processor circuit 3, protection
Signal dry contact output circuit 4 and auxiliary power circuit 5, the auxiliary power circuit 5 and frequency converter output voltage transmission circuit
1, marked voltage of discharge tube transmission circuit 2, digital signal processor circuit 3, the electrical connection of protection signal dry contact output circuit 4 are simultaneously
It powers for it；There is the frequency converter output voltage transmission circuit 1 frequency converter output voltage access interface 1, frequency converter to export
Voltage access interface 2 12 and the first low-voltage analog signal output end 13；The marked voltage of discharge tube transmission circuit 2, which has, to be put
Fulgurite discharge voltage access interface 1, marked voltage of discharge tube access interface 2 22 and the second low-voltage analog signal output end
23；There is the digital signal processor circuit 3 first analog-to-digital conversion mouth 31, the second analog-to-digital conversion mouth 32 and first to drive pin
33；There is the protection signal dry contact output circuit 4 protection signal dry contact to pick out port opened point 41, protection signal stem grafting
Point picks out port common point 42 and second and drives pin 43；The first low-voltage analog signal output end 13 and Digital Signal Processing
First analog-to-digital conversion mouth 31 of device circuit 3 connects；The second low-voltage analog signal output end 23 and digital signal processor electricity
The second analog-to-digital conversion mouth 32 on road 3 connects；First driving pin 33 is connect with the second driving pin 43；The protection signal stem grafting
Point picks out port opened point 41 and protection signal dry contact picks out 42 output protection signal of port common point.
In practical applications, the ozone discharge tube electricity of the Dielectric Barrier Discharge Type Ozone Generator described in the object of the invention one
What pole puncture protection device was connect with Dielectric Barrier Discharge Type Ozone Generator is connected with two ways.Such as two He of following embodiment
Described in three.
Embodiment two：
Below in conjunction with attached drawing 6 to the ozone discharge tube electrode of the Dielectric Barrier Discharge Type Ozone Generator described in the object of the invention one
One embodiment that puncture protection device is connect with Dielectric Barrier Discharge Type Ozone Generator is described in detail.
In Fig. 6, Dielectric Barrier Discharge Type Ozone Generator 100 includes frequency converter 7, booster 8, control centre 9, ozone hair
Raw device cavity 10 and its discharge tube 101 and ozone discharge tube electrode puncture protection device 6, the ozone discharge tube electrode breakdown are protected
Protection unit 6 is the ozone discharge tube electrode breakdown protection dress of the Dielectric Barrier Discharge Type Ozone Generator described in embodiment one
It sets.
As shown in Figure 6, the voltage input end of the frequency converter 7 is connect with power grid, and the output voltage of frequency converter 7 picks out end
Mouthfuls 1, output voltage pick out port 2 72 respectively in the primary side access interface 1 and booster 8 of transformer in booster 8
The primary side access interface 2 82 of transformer connects, and the high-field electrode of every discharge tube 101 is connected to booster 8 after being connected in parallel
Interior resonance high-voltage connecting exit port 83, the low-field electrode of every discharge tube 101 are connected to the low pressure in booster 8 after being connected in parallel
Port 84 is picked out, control centre 9 has frequency converter enabling signal dry contact opened point 93 and control centre's frequency converter enabling signal
Dry contact common point 94, control centre's frequency converter enabling signal dry contact opened point 93 connect with frequency converter enabling signal first
Inbound port 73 connects, control centre's frequency converter enabling signal dry contact common point 94 and the second access interface of frequency converter enabling signal
74 connections.
In the ozone discharge tube electrode puncture protection device 6 of the Dielectric Barrier Discharge Type Ozone Generator, the frequency conversion
2 12 points of frequency converter output voltage access interface 1, the frequency converter output voltage access interface of device output voltage transmission circuit 1
It is not connect with the primary side access interface 2 82 of transformer in the primary side access interface 1 of transformer in booster 8 and booster 8；
Marked voltage of discharge tube access interface 1, the marked voltage of discharge tube incoming end of the marked voltage of discharge tube transmission circuit 2
Mouth 2 22 is parallel-connected to low-voltage in 8 interior resonance high-voltage connecting exit port 83 of booster and booster and picks out port 84；Protection letter
Number dry contact picks out port opened point 41 and is connect with control centre the first access interface of protection signal 91；Protection signal dry contact connects
Exit port common point 42 is connect with control centre the second access interface of protection signal 92；
In the present embodiment, the protection signal dry contact picks out that port opened point 41, that protection signal dry contact picks out port is public
Point 42 conveys protection signal to the control centre of ozone generator, then sends protection instruction manipulation frequency converter 7 by control centre
Start and close, prevents electric discharge pipe electrode breakdown.
Embodiment three：
Below in conjunction with attached drawing 7 to the ozone discharge tube electrode of the Dielectric Barrier Discharge Type Ozone Generator described in the object of the invention one
Second connect with Dielectric Barrier Discharge Type Ozone Generator the embodiment of puncture protection device is described in detail.
In Fig. 6, Dielectric Barrier Discharge Type Ozone Generator 100 includes frequency converter 7, booster 8, control centre 9, ozone hair
Raw device cavity 10 and its discharge tube 101 and ozone discharge tube electrode puncture protection device 6, the ozone discharge tube electrode breakdown are protected
Protection unit 6 is the ozone discharge tube electrode puncture protection device described in embodiment one.
Unlike embodiment two, in the present embodiment, the protection signal of ozone discharge tube electrode puncture protection device 6
Dry contact picks out port opened point 41 and is connect with the frequency converter enabling signal dry contact common point 94 of control centre 9, protection signal
Dry contact picks out port common point 42 and is directly connect with the second access interface of frequency converter enabling signal 74 of ozone generator；
Protection signal dry contact picks out port opened point 41, protection signal dry contact picks out port common point 42 and directly transports protection
Signal manipulates the startup and closing of frequency converter 7 to frequency converter 7, prevents electric discharge pipe electrode breakdown.
It is smelly using the dielectric barrier discharge type of the object of the invention one described in two kinds of technical solutions of the purpose of the present invention two
The ozone generator of the ozone discharge tube electrode puncture protection device of Oxygen Generator, embodiment and above-described embodiment two and three-phase
Together, details are not described herein.
Operation principle explanation：
Below in conjunction with attached drawing 6-7 to the ozone discharge tube electricity of the Dielectric Barrier Discharge Type Ozone Generator described in the object of the invention one
The operation principle of pole puncture protection device is done one and is briefly described：
The operation principle of this protective device is：Frequency converter output voltage is converted to by the frequency converter output voltage transmission circuit 1
For low-voltage analog signal, the first modulus of digital signal processor circuit is transported to by the first low-voltage analog signal output end 13
Convert mouth 31；Marked voltage of discharge tube is transformed into low-voltage analog signal by the marked voltage of discharge tube transmission circuit 2, is passed through
Second low-voltage analog signal output end 13 is transported to the second analog-to-digital conversion mouth 32 of digital signal processor circuit；The number letter
Number processor circuit 3 determines whether discharge tube dielectric rupture occur according to the correlation of above-mentioned two-way analog-to-digital conversion mouth voltage,
If it is determined that there is discharge tube dielectric rupture, then protection signal is provided by the protection signal dry contact output circuit 4；
When the protection signal dry contact of protection signal dry contact output circuit 4 picks out port opened point 41, protection signal dry contact
Port common point 42 is picked out to access with control centre the first access interface of protection signal 91, control centre's protection signal second respectively
When port 92 connects, protection signal dry contact output circuit 4 conveys protection signal to control centre 9, and control centre 9 receives protection
After signal, sends out protection instruction and close frequency converter.
When protection signal dry contact picks out port opened point 41 and the frequency converter enabling signal dry contact of control centre 9 is public
94 connection of point, protection signal dry contact pick out the second incoming end of frequency converter enabling signal of port common point 42 and ozone generator
Mouthfuls 74 connect, and the dry contact of protection signal dry contact output circuit 4 picks out port 41 and 42 and is directly connected to frequency converter, directly to
Frequency converter sends out protection instruction and closes frequency converter, prevents electric discharge pipe electrode breakdown.
The judgment mechanism of this protective device is：
1. digital signal processor circuit determines whether that the mechanism for discharge tube dielectric rupture occur is：In the calculating week of a certain duration
In phase, in the case of frequency converter output voltage is normal, if marked voltage of discharge tube is abnormal, it is determined as discharge tube dielectric rupture；
In the case of other, it is determined as normal.The calculating cycle generally takes the several times in frequency converter output voltage period to decades of times.
2. the digital signal processor circuit judgement normal mechanism of frequency converter output voltage is：In calculating cycle, detecting
It is more than a certain threshold value to effective positive and negative alternate frequency.
3. the mechanism of digital signal processor circuit judgement marked voltage of discharge tube exception is：In calculating cycle, detecting
It is less than the positive and negative alternate frequency of frequency converter output voltage to effective positive and negative alternate frequency, and few number reaches a certain threshold value.
4. digital signal processor circuit is synchronized using fixed sample period and carries out mould to the voltage of two analog-to-digital conversion mouths
Number conversion.The sampling period generally takes the one of the one Dao tens of points of hundreds of points of frequency converter output voltage period, to ensure wave
Shape is undistorted.
5. directly analog-digital conversion result is automatically stored everywhere using its internal DMA peripheral hardware for digital signal processor circuit
It manages in the RAM inside device.Two sections of storage sections are opened up in RAM becomes the areas A and the areas B, and every section of section can store a meter
Calculate all analog-digital conversion datas in the period.
If analog-digital conversion data is to be stored to the areas A in current calculation cycle, after time of current calculation cycle finishes, DMA
The areas B storage data will be used instead；Digital signal processor circuit carries out frequency converter output voltage and electric discharge according to the data in the areas A simultaneously
Tube discharge voltage normally whether judgement calculate.After a calculating cycle, DMA is gained again to A and is gone storage data；Number simultaneously
Signal processor circuit carries out judgement calculating according to the data in the areas B.Continuous non-blind area detecting can be achieved in this way.
Described above is presently preferred embodiments of the present invention, the impartial change that all claims according to the present invention are done to the greatest extent
Change, should all belong to covering scope of the present invention.
Claims (8)
1. a kind of ozone discharge tube electrode puncture protection device of Dielectric Barrier Discharge Type Ozone Generator（6）, including discharge tube
Discharge voltage transmission circuit（2）And auxiliary power circuit（5）, the marked voltage of discharge tube transmission circuit（2）With accessory power supply
Circuit（5）Electrical connection, it is characterised in that：It also include frequency converter output voltage transmission circuit（1）, digital signal processor circuit
（3）With protection signal dry contact output circuit（4）, the frequency converter output voltage transmission circuit（1）, digital signal processor electricity
Road（3）With protection signal dry contact output circuit（4）With auxiliary power circuit（5）Electrical connection；The frequency converter output voltage becomes
Power transmission road（1）With frequency converter output voltage access interface one（11）, frequency converter output voltage access interface two（12）With first
Low-voltage analog signal output end（13）；The marked voltage of discharge tube transmission circuit（2）With marked voltage of discharge tube incoming end
Mouth one（21）, marked voltage of discharge tube access interface two（22）With the second low-voltage analog signal output end（23）；The number letter
Number processor circuit (3) has the first analog-to-digital conversion mouth（31）, the second analog-to-digital conversion mouth（32）With the first driving pin（33）；Institute
State protection signal dry contact output circuit（4）Port opened point is picked out with protection signal dry contact（41）, protection signal stem grafting
Point picks out port common point（42）With the second driving pin（43）；The first low-voltage analog signal output end（13）Believe with number
Number processor circuit（3）The first analog-to-digital conversion mouth（31）Connection；The second low-voltage analog signal output end（23）With number
Signal processor circuit（3）The second analog-to-digital conversion mouth（32）Connection；First driving pin of digital signal processor circuit
（33）Pin is driven with the second of protection signal dry contact output circuit（43）Connection；The protection signal dry contact picks out port
Opened point（41）Port common point is picked out with protection signal dry contact（42）Output protection signal.
2. the ozone discharge tube electrode puncture protection device of Dielectric Barrier Discharge Type Ozone Generator as described in claim 1,
It is characterized in that：The Dielectric Barrier Discharge Type Ozone Generator includes frequency converter（7）, booster（8）, control centre（9）With
Ozone generator cavity（10）And its discharge tube（101）, frequency converter（7）Voltage input end connect with power grid, frequency converter（7）'s
Output voltage picks out port one（71）, frequency converter（7）Output voltage pick out port two（72）Respectively with booster（8）Interior transformation
The primary side access interface one of device（81）And booster（8）The primary side access interface two of interior transformer（82）Connection, booster（8）It is interior
Resonance high-voltage picks out port（83）Port is picked out with low-voltage in booster（84）With ozone discharge tube（101）High and low piezoelectricity
It is extremely in parallel；The frequency converter output voltage transmission circuit（1）Frequency converter output voltage access interface one（11）, frequency converter output
Voltage transmission circuit（1）Frequency converter output voltage access interface two（12）It is parallel-connected to the generation of dielectric barrier discharge type ozone
Transformer primary side access interface one in the booster of device（81）With transformer primary side access interface two in booster（82）；It is described to put
Fulgurite discharge voltage access interface one（21）, marked voltage of discharge tube access interface two（22）It is parallel-connected to dielectric barrier discharge
The booster of type ozone generator（8）Interior resonance high-voltage connecting exit port（83）Port is picked out with low-voltage in booster（84）.
3. the ozone discharge tube electrode puncture protection device of Dielectric Barrier Discharge Type Ozone Generator as claimed in claim 2,
It is characterized in that：Frequency converter（7）Output voltage pick out port one（71）With booster（8）The primary side access interface of interior transformer
One（81）Between connection there are one fuse (18), frequency converter（7）Output voltage pick out port two（72）And booster（8）It is interior
The primary side access interface two of transformer（82）Between connection there are one fuse (19).
4. the ozone discharge tube electrode breakdown protection of the Dielectric Barrier Discharge Type Ozone Generator as described in one of claim 1 ~ 3
Device, it is characterised in that：The protection signal dry contact picks out port opened point（41）Port is picked out with protection signal dry contact
Common point（42）Respectively with control centre's the first access interface of protection signal（91）, the second access interface of control centre's protection signal
（92）Connection, control centre's frequency converter enabling signal dry contact opened point（93）With the first access interface of frequency converter enabling signal
（73）Connection, control centre's frequency converter enabling signal dry contact common point（94）With the second access interface of frequency converter enabling signal
（74）Connection.
5. the ozone discharge tube electrode breakdown protection of the Dielectric Barrier Discharge Type Ozone Generator as described in one of claim 1 ~ 3
Device, it is characterised in that：The protection signal dry contact picks out port opened point（41）With control centre's frequency converter enabling signal
Dry contact common point（94）Connection, protection signal dry contact pick out port common point（42）It is accessed with frequency converter enabling signal second
Port（74）Connection, control centre's frequency converter enabling signal dry contact opened point（93）With the first incoming end of frequency converter enabling signal
Mouthful（73）Connection.
6. a kind of ozone generator using ozone discharge tube electrode puncture protection device, it is characterised in that：Including dielectric impedance
Discharge-type ozone generator and ozone discharge tube electrode puncture protection device as described in claim 1, the dielectric barrier discharge
Type ozone generator includes frequency converter（7）, booster（8）, control centre（9）, ozone generator cavity（10）And discharge tube
（101）, frequency converter（7）Voltage input end connect with power grid, frequency converter（7）Output voltage pick out port one（71）, output
Voltage picks out port two（72）Respectively with booster（8）The primary side access interface one of interior transformer（81）And booster（8）Interior change
The primary side access interface two of depressor（82）Connection, booster（8）Interior resonance high-voltage connecting exit port（83）With low-voltage in booster
Pick out port（84）With discharge tube（101）High and low pressure electrode it is in parallel；The frequency converter output voltage transmission circuit（1）Change
Frequency device output voltage access interface one（11）, frequency converter output voltage access interface two（12）Respectively with booster（8）Interior transformation
The primary side access interface one of device（81）And booster（8）The primary side access interface two of interior transformer（82）Connection；The discharge tube
Discharge voltage transmission circuit（2）Marked voltage of discharge tube access interface one（21）, marked voltage of discharge tube access interface two
（22）It is parallel-connected to booster（8）Interior resonance high-voltage connecting exit port（83）Port is picked out with low-voltage in booster（84）；Institute
It states protection signal dry contact and picks out the normally closed point in port（41）With control centre's frequency converter enabling signal dry contact common point（94）Even
It connects, protection signal dry contact picks out port common point（42）With the second access interface of frequency converter enabling signal of ozone generator
（74）Connection；Control centre's frequency converter enabling signal dry contact opened point（93）With the first access interface of frequency converter enabling signal
（73）Connection.
7. a kind of ozone generator using ozone discharge tube electrode puncture protection device, it is characterised in that：Including dielectric impedance
Discharge-type ozone generator and ozone discharge tube electrode puncture protection device as described in claim 1, the dielectric impedance are put
Electric type ozone generator includes frequency converter（7）, booster（8）, control centre（9）, ozone generator cavity（10）And discharge tube
（101）, frequency converter（7）Voltage input end connect with power grid, frequency converter（7）Output voltage pick out port one（71）, output
Voltage picks out port two（72）Respectively with booster（8）The primary side access interface one of interior transformer（81）And booster（8）Interior change
The primary side access interface two of depressor（82）Connection, booster（8）Low-voltage in interior resonance high-voltage connecting exit port (83) and booster
It is in parallel with the high and low pressure electrode of discharge tube (101) to pick out port (84)；The change of the frequency converter output voltage transmission circuit (1)
Frequency device output voltage access interface one (11), frequency converter output voltage access interface two (12) respectively with booster (8) interior transformation
The primary side access interface two (82) of primary side access interface one (81) and booster (8) interior transformer of device connects；The discharge tube
Marked voltage of discharge tube access interface one (21), the marked voltage of discharge tube access interface two of discharge voltage transmission circuit (2)
(22) it is parallel-connected to low-voltage in booster (8) interior resonance high-voltage connecting exit port (83) and booster and picks out port (84)；Institute
It states protection signal dry contact and picks out the normally closed point (41) in port and connect with control centre's the first access interface of protection signal (91)；Protection
Signal dry contact picks out port common point (42) and is connect with control centre's the second access interface of protection signal (92)；Control centre becomes
Frequency device enabling signal dry contact opened point (93) is connect with the first access interface of frequency converter enabling signal (73)；Control centre's frequency conversion
Device enabling signal dry contact (94) is connect with the second access interface of frequency converter enabling signal (74) of ozone generator.
8. the ozone generator using ozone discharge tube electrode puncture protection device as described in claim 6-7, feature exist
In：Frequency converter（7）Output voltage pick out port one（71）With booster（8）The primary side access interface one of interior transformer（81）It
Between connection there are one fuse（18）, frequency converter（7）Output voltage pick out port two（72）And booster（8）Interior transformer
Primary side access interface two（82）Between connection there are one fuse（19）.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026951.XA CN108321768B (en) | 2017-01-15 | 2017-01-15 | Its ozone generator of a kind of ozone discharge tube electrode puncture protection device of Dielectric Barrier Discharge Type Ozone Generator and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026951.XA CN108321768B (en) | 2017-01-15 | 2017-01-15 | Its ozone generator of a kind of ozone discharge tube electrode puncture protection device of Dielectric Barrier Discharge Type Ozone Generator and application |
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| CN108321768A true CN108321768A (en) | 2018-07-24 |
| CN108321768B CN108321768B (en) | 2019-10-01 |
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| CN110562929A (en) * | 2019-09-02 | 2019-12-13 | 中国神华煤制油化工有限公司 | ozone generating device and quick drying method thereof |
| CN111010790A (en) * | 2019-12-05 | 2020-04-14 | 北京东方计量测试研究所 | Dielectric barrier discharge plasma reactor and sterilizing device |
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| CN206611168U (en) * | 2017-01-15 | 2017-11-03 | 新大陆科技集团有限公司 | The ozone discharge tube electrode puncture protection device of Dielectric Barrier Discharge Type Ozone Generator a kind of and apply its ozone generator |
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|---|---|
| CN108321768B (en) | 2019-10-01 |
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